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Which of the following is not a Lewis ac...

Which of the following is not a Lewis acid ?

A

`BBr_(3)`

B

`BF_(3)`

C

`BCl_(3)`

D

`[BH_(4)]^(Ө)`

Text Solution

Verified by Experts

The correct Answer is:
D
In `[BH_(4)]^(Ө)`, no vacant `2p` orbital is present on `B` to accept and electron pair , hence it does not behave as a Lewis acid.
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